How To Fix WRF_WLAY134 - Dataset cannot be changed (parameters see long text)

WRF_WLAY134 - Overview

• Message type: E = Error

• Message class: WRF_WLAY - Messages in Layout Environment in Fashion Solution

• Message number: 134

• Message text: Dataset cannot be changed (parameters see long text)

What causes this issue?

A data record is to be changed in table
MALG (assignments of materials to LM version or variant). However,
the system cannot find the original data record in the table.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Perform the action again. If the error occurs again, inform you system
administrator.

Procedure for System Administrators

The following parameters were available at runtime when the table was
read:
Material:
&v1&
Unit of measure:,,
&v2&
Layout module:
&v3&
Sequence number:
&v4& (sequence number in layout module - internal use in the table)

Error message extract from SAP system. Copyright SAP SE.

WRF_WLAY134 - Details

• The SAP error message WRF_WLAY134 indicates that a dataset cannot be changed due to certain restrictions or conditions that are not met. This error typically occurs in the context of working with layout or planning data in SAP's Advanced Planning and Optimization (APO) or similar modules.
  
  Cause:
  The error can be caused by several factors, including but not limited to:
  
  Locked Dataset: The dataset you are trying to modify may be locked by another user or process.
  Incorrect Authorizations: The user may not have the necessary authorizations to change the dataset.
  Data Consistency Issues: There may be inconsistencies in the data that prevent changes from being made.
  Status of the Dataset: The dataset might be in a status that does not allow changes (e.g., it could be marked as "completed" or "finalized").
  Technical Issues: There could be underlying technical issues or bugs in the system.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Dataset Lock: Verify